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-3x + 2y = 9 x - 3y = 4
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2 votes
-3x + 2y = 9
x - 3y = 4

User Jared Levy
by
3.4k points

1 Answer

5 votes

Answer:

(-5, -3)

Explanation:

Isolate x:

x - 3y = 4

x = 3y + 4

Substitute to get y:

-3x + 2y = 9

-3(3y + 4) + 2y = 9

-9y - 12 + 2y = 9

-7y = 21

y = -3

Substitute to get x:

x = 3y + 4

= 3(-3) + 4

-9 + 4

= -5

User Orar
by
3.7k points
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